netdev - [PATCH 0/2][RFC] mv643xx_eth: hw tx checksumming support for vlan-tagged packets

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Date:	Mon, 7 Jul 2008 22:56:15 +0200
From:	Lennert Buytenhek <buytenh@...tstofly.org>
To:	Patrick McHardy <kaber@...sh.net>
Cc:	Nicolas Pitre <nico@....org>,
	Dale Farnsworth <dale@...nsworth.org>,
	Ashish Karkare <akarkare@...vell.com>,
	Jesper Dangaard Brouer <jdb@...x.dk>, netdev@...r.kernel.org
Subject: [PATCH 0/2][RFC] mv643xx_eth: hw tx checksumming support for vlan-tagged packets

These two patches let mv643xx_eth use hardware TX checksumming in the
presence of extra data between the ethernet header and the IP header
(e.g. vlan tags, or DSA switch tags (for which I'll hopefully submit
some code soon)).

The main thing I'd like feedback on is that I had to switch
vlan_check_reorder_header() from using skb_copy() to using pskb_copy()
to have fragmented skbs survive the trip through the stack to the
driver's ->hard_start_xmit() function at all.  The patch to the driver
itself (2/2) should be pretty straightforward.

(These patches depend on Patrick McHardy's patch "vlan: fix
network_header/mac_header adjustments".)
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